mirror of
https://github.com/pret/pokered.git
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1b9ee46af9
globals.asm was a hack that: - gave rgbasm an extra 100k lines to read - increased reliance on the python preprocessor - made the makefile a mess - gave object creation an extra step - wasn't even necessary This speeds up build time by at least a third.
1733 lines
25 KiB
NASM
1733 lines
25 KiB
NASM
; The second of three duplicated sound engines.
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Func_21879:: ; 21879 (8:5879)
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ld c, CH0
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.loop
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ld b, $0
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ld hl, $c026
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add hl, bc
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ld a, [hl]
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and a
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jr z, .nextChannel
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ld a, c
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cp CH4
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jr nc, .applyAffects ; if sfx channel
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ld a, [$c002]
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and a
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jr z, .applyAffects
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bit 7, a
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jr nz, .nextChannel
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set 7, a
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ld [$c002], a
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xor a
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ld [$FF00+$25], a
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ld [$FF00+$1a], a
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ld a, $80
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ld [$FF00+$1a], a
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jr .nextChannel
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.applyAffects
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call Music8_ApplyMusicAffects
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.nextChannel
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ld a, c
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inc c
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cp CH7
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jr nz, .loop
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ret
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; this routine checks flags for music effects currently applied
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; to the channel and calls certain functions based on flags.
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; known flags for $c02e:
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; 1: call has been used
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; 3: a toggle used only by this routine for vibrato
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; 4: pitchbend flag
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; 6: dutycycle flag
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Music8_ApplyMusicAffects: ; 218ae (8:58ae)
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ld b, $0
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ld hl, $c0b6 ; delay unitl next note
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add hl, bc
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ld a, [hl]
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cp $1 ; if the delay is 1, play next note
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jp z, Music8_PlayNextNote
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dec a ; otherwise, decrease the delay timer
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ld [hl], a
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ld a, c
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cp CH4
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jr nc, .startChecks ; if a sfx channel
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ld hl, $c02a
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add hl, bc
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ld a, [hl]
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and a
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jr z, .startChecks
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ret
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.startChecks
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ld hl, $c02e
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add hl, bc
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bit 6, [hl] ; dutycycle
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jr z, .checkForExecuteMusic
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call Music8_ApplyDutyCycle
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.checkForExecuteMusic
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ld b, $0
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ld hl, $c036
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add hl, bc
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bit 0, [hl]
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jr nz, .checkForPitchBend
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ld hl, $c02e
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add hl, bc
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bit 2, [hl]
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jr nz, .disablePitchBendVibrato
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.checkForPitchBend
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ld hl, $c02e
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add hl, bc
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bit 4, [hl] ; pitchbend
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jr z, .checkVibratoDelay
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jp Music8_ApplyPitchBend
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.checkVibratoDelay
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ld hl, $c04e ; vibrato delay
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add hl, bc
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ld a, [hl]
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and a ; check if delay is over
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jr z, .checkForVibrato
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dec [hl] ; otherwise, dec delay
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.disablePitchBendVibrato
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ret
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.checkForVibrato
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ld hl, $c056 ; vibrato rate
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add hl, bc
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ld a, [hl]
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and a
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jr nz, .vibrato
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ret ; no vibrato
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.vibrato
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ld d, a
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ld hl, $c05e
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add hl, bc
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ld a, [hl]
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and $f
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and a
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jr z, .vibratoAlreadyDone
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dec [hl] ; apply vibrato pitch change
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ret
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.vibratoAlreadyDone
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ld a, [hl]
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swap [hl]
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or [hl]
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ld [hl], a ; reset the vibrato value and start again
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ld hl, $c066
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add hl, bc
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ld e, [hl] ; get note pitch
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ld hl, $c02e
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add hl, bc
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bit 3, [hl] ; this is the only code that sets/resets bit three so
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jr z, .unset ; it continuously alternates which path it takes
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res 3, [hl]
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ld a, d
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and $f
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ld d, a
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ld a, e
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sub d
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jr nc, .noCarry
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ld a, $0
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.noCarry
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jr .done
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.unset
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set 3, [hl]
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ld a, d
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and $f0
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swap a
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add e
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jr nc, .done
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ld a, $ff
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.done
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ld d, a
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ld b, $3
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call Func_21ff7
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ld [hl], d
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ret
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; this routine executes all music commands that take up no time,
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; like tempo changes, duty changes etc. and doesn't return
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; until the first note is reached
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Music8_PlayNextNote: ; 21946 (8:5946)
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ld hl, $c06e
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add hl, bc
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ld a, [hl]
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ld hl, $c04e
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add hl, bc
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ld [hl], a
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ld hl, $c02e
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add hl, bc
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res 4, [hl]
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res 5, [hl]
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ld a, c
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cp CH4
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jr nz, .beginChecks
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ld a, [$d083]
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bit 7, a
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ret nz
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.beginChecks
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call Music8_endchannel
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ret
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Music8_endchannel: ; 21967 (8:5967)
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call Music8_GetNextMusicByte
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ld d, a
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cp $ff ; is this command an endchannel?
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jp nz, Music8_callchannel ; no
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ld b, $0 ; yes
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ld hl, $c02e
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add hl, bc
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bit 1, [hl]
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jr nz, .returnFromCall
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ld a, c
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cp CH3
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jr nc, .noiseOrSfxChannel
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jr .asm_219c0
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.noiseOrSfxChannel
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res 2, [hl]
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ld hl, $c036
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add hl, bc
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res 0, [hl]
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cp CH6
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jr nz, .notSfxChannel3
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ld a, $0
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ld [$FF00+$1a], a
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ld a, $80
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ld [$FF00+$1a], a
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.notSfxChannel3
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jr nz, .asm_219a3
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ld a, [$c003]
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and a
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jr z, .asm_219a3
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xor a
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ld [$c003], a
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jr .asm_219c0
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.asm_219a3
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jr .asm_219c9
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.returnFromCall
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res 1, [hl]
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ld d, $0
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ld a, c
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add a
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ld e, a
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ld hl, $c006
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add hl, de
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push hl ; store current channel address
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ld hl, $c016
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add hl, de
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ld e, l
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ld d, h
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pop hl
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ld a, [de]
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ld [hli], a
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inc de
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ld a, [de]
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ld [hl], a ; loads channel address to return to
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jp Music8_endchannel
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.asm_219c0
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ld hl, Unknown_222de
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add hl, bc
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ld a, [$FF00+$25]
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and [hl]
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ld [$FF00+$25], a
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.asm_219c9
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ld a, [$c02a]
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cp $14
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jr nc, .asm_219d2
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jr .asm_219ef
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.asm_219d2
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ld a, [$c02a]
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cp $86
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jr z, .asm_219ef
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jr c, .asm_219dd
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jr .asm_219ef
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.asm_219dd
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ld a, c
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cp CH4
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jr z, .asm_219e6
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call Func_21e6d
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ret c
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.asm_219e6
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ld a, [$c005]
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ld [$FF00+$24], a
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xor a
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ld [$c005], a
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.asm_219ef
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ld hl, $c026
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add hl, bc
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ld [hl], b
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ret
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Music8_callchannel: ; 219f5 (8:59f5)
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cp $fd ; is this command a callchannel?
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jp nz, Music8_loopchannel ; no
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call Music8_GetNextMusicByte ; yes
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push af
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call Music8_GetNextMusicByte
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ld d, a
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pop af
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ld e, a
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push de ; store pointer
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ld d, $0
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ld a, c
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add a
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ld e, a
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ld hl, $c006
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add hl, de
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push hl
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ld hl, $c016
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add hl, de
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ld e, l
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ld d, h
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pop hl
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ld a, [hli]
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ld [de], a
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inc de
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ld a, [hld]
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ld [de], a ; copy current channel address
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pop de
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ld [hl], e
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inc hl
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ld [hl], d ; overwrite current address with pointer
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ld b, $0
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ld hl, $c02e
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add hl, bc
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set 1, [hl] ; set the call flag
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jp Music8_endchannel
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Music8_loopchannel: ; 21a2a (8:5a2a)
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cp $fe ; is this command a loopchannel?
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jp nz, Music8_notetype ; no
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call Music8_GetNextMusicByte ; yes
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ld e, a
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and a
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jr z, .infiniteLoop
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ld b, $0
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ld hl, $c0be
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add hl, bc
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ld a, [hl]
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cp e
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jr nz, .loopAgain
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ld a, $1 ; if no more loops to make,
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ld [hl], a
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call Music8_GetNextMusicByte ; skip pointer
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call Music8_GetNextMusicByte
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jp Music8_endchannel
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.loopAgain ; inc loop count
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inc a
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ld [hl], a
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; fall through
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.infiniteLoop ; overwrite current address with pointer
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call Music8_GetNextMusicByte
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push af
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call Music8_GetNextMusicByte
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ld b, a
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ld d, $0
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ld a, c
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add a
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ld e, a
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ld hl, $c006
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add hl, de
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pop af
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ld [hli], a
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ld [hl], b
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jp Music8_endchannel
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Music8_notetype: ; 21a65 (8:5a65)
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and $f0
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cp $d0 ; is this command a notetype?
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jp nz, Music8_togglecall ; no
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ld a, d ; yes
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and $f
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ld b, $0
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ld hl, $c0c6
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add hl, bc
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ld [hl], a ; store low nibble as speed
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ld a, c
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cp CH3
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jr z, .noiseChannel ; noise channel has 0 params
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call Music8_GetNextMusicByte
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ld d, a
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ld a, c
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cp CH2
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jr z, .musicChannel3
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cp CH6
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jr nz, .notChannel3
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ld hl, $c0e7
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jr .sfxChannel3
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.musicChannel3
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ld hl, $c0e6
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.sfxChannel3
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ld a, d
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and $f
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ld [hl], a ; store low nibble of param as duty
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ld a, d
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and $30
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sla a
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ld d, a
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; fall through
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; if channel 3, store high nibble as volume
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; else, store volume (high nibble) and fade (low nibble)
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.notChannel3
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ld b, $0
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ld hl, $c0de
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add hl, bc
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ld [hl], d
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.noiseChannel
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jp Music8_endchannel
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Music8_togglecall: ; 21aa4 (8:5aa4)
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ld a, d
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cp $e8 ; is this command an togglecall?
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jr nz, Music8_vibrato ; no
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ld b, $0 ; yes
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ld hl, $c02e
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add hl, bc
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ld a, [hl]
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xor $1
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ld [hl], a ; flip bit 0 of $c02e (toggle returning from call)
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jp Music8_endchannel
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Music8_vibrato: ; 21ab6 (8:5ab6)
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cp $ea ; is this command a vibrato?
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jr nz, Music8_pitchbend ; no
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call Music8_GetNextMusicByte ; yes
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ld b, $0
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ld hl, $c04e
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add hl, bc
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ld [hl], a ; store delay
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ld hl, $c06e
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add hl, bc
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ld [hl], a ; store delay
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call Music8_GetNextMusicByte
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ld d, a
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and $f0
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swap a
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ld b, $0
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ld hl, $c056
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add hl, bc
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srl a
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ld e, a
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adc b
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swap a
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or e
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ld [hl], a ; store rate as both high and low nibbles
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ld a, d
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and $f
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ld d, a
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ld hl, $c05e
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add hl, bc
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swap a
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or d
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ld [hl], a ; store depth as both high and low nibbles
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jp Music8_endchannel
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Music8_pitchbend: ; 21aee (8:5aee)
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cp $eb ; is this command a pitchbend?
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jr nz, Music8_duty ; no
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call Music8_GetNextMusicByte ; yes
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ld b, $0
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ld hl, $c076
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add hl, bc
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ld [hl], a ; store first param
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call Music8_GetNextMusicByte
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ld d, a
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and $f0
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swap a
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ld b, a
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ld a, d
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and $f
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call Func_22017
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ld b, $0
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ld hl, $c0a6
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add hl, bc
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ld [hl], d ; store unknown part of second param
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ld hl, $c0ae
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add hl, bc
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ld [hl], e ; store unknown part of second param
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ld b, $0
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ld hl, $c02e
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add hl, bc
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set 4, [hl] ; set pitchbend flag
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call Music8_GetNextMusicByte
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ld d, a
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jp Music8_notelength
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Music8_duty: ; 21b26 (8:5b26)
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cp $ec ; is this command a duty?
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jr nz, Music8_tempo ; no
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call Music8_GetNextMusicByte ; yes
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rrca
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rrca
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and $c0
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ld b, $0
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ld hl, $c03e
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add hl, bc
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ld [hl], a ; store duty
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jp Music8_endchannel
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Music8_tempo: ; 21b3b (8:5b3b)
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cp $ed ; is this command a tempo?
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jr nz, Music8_unknownmusic0xee ; no
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ld a, c ; yes
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cp CH4
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jr nc, .sfxChannel
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call Music8_GetNextMusicByte
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ld [$c0e8], a ; store first param
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call Music8_GetNextMusicByte
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ld [$c0e9], a ; store second param
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xor a
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ld [$c0ce], a ; clear RAM
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ld [$c0cf], a
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ld [$c0d0], a
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ld [$c0d1], a
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jr .musicChannelDone
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.sfxChannel
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call Music8_GetNextMusicByte
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ld [$c0ea], a ; store first param
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call Music8_GetNextMusicByte
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ld [$c0eb], a ; store second param
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xor a
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ld [$c0d2], a ; clear RAM
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ld [$c0d3], a
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ld [$c0d4], a
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ld [$c0d5], a
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.musicChannelDone
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jp Music8_endchannel
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Music8_unknownmusic0xee: ; 21b7b (8:5b7b)
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cp $ee ; is this command an unknownmusic0xee?
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jr nz, Music8_unknownmusic0xef ; no
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call Music8_GetNextMusicByte ; yes
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ld [$c004], a ; store first param
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jp Music8_endchannel
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; this appears to never be used
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Music8_unknownmusic0xef: ; 21b88 (8:5b88)
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cp $ef ; is this command an unknownmusic0xef?
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jr nz, Music8_dutycycle ; no
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call Music8_GetNextMusicByte ; yes
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push bc
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call Func_22035
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pop bc
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ld a, [$c003]
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and a
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jr nz, .skip
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ld a, [$c02d]
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ld [$c003], a
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xor a
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ld [$c02d], a
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.skip
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jp Music8_endchannel
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Music8_dutycycle: ; 21ba7 (8:5ba7)
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cp $fc ; is this command a dutycycle?
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jr nz, Music8_stereopanning ; no
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call Music8_GetNextMusicByte ; yes
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ld b, $0
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ld hl, $c046
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add hl, bc
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ld [hl], a ; store full cycle
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and $c0
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ld hl, $c03e
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add hl, bc
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ld [hl], a ; store first duty
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ld hl, $c02e
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add hl, bc
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set 6, [hl] ; set dutycycle flag
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jp Music8_endchannel
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Music8_stereopanning: ; 21bc5 (8:5bc5)
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cp $f0 ; is this command a stereopanning?
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jr nz, Music8_executemusic ; no
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call Music8_GetNextMusicByte ; yes
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ld [$FF00+$24], a
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jp Music8_endchannel
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Music8_executemusic: ; 21bd1 (8:5bd1)
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cp $f8 ; is this command an executemusic?
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jr nz, Music8_octave ; no
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ld b, $0 ; yes
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ld hl, $c036
|
|
add hl, bc
|
|
set 0, [hl]
|
|
jp Music8_endchannel
|
|
|
|
Music8_octave: ; 21be0 (8:5be0)
|
|
and $f0
|
|
cp $e0 ; is this command an octave?
|
|
jr nz, Music8_unknownsfx0x20 ; no
|
|
ld hl, $c0d6 ; yes
|
|
ld b, $0
|
|
add hl, bc
|
|
ld a, d
|
|
and $f
|
|
ld [hl], a ; store low nibble as octave
|
|
jp Music8_endchannel
|
|
|
|
Music8_unknownsfx0x20: ; 21bf3
|
|
cp $20 ; is this command an unknownsfx0x20?
|
|
jr nz, Music8_unknownsfx0x10 ; no
|
|
ld a, c
|
|
cp CH3 ; is this a noise or sfx channel?
|
|
jr c, Music8_unknownsfx0x10 ; no
|
|
ld b, $0
|
|
ld hl, $c036
|
|
add hl, bc
|
|
bit 0, [hl]
|
|
jr nz, Music8_unknownsfx0x10 ; no
|
|
call Music8_notelength
|
|
ld d, a
|
|
ld b, $0
|
|
ld hl, $c03e
|
|
add hl, bc
|
|
ld a, [hl]
|
|
or d
|
|
ld d, a
|
|
ld b, $1
|
|
call Func_21ff7
|
|
ld [hl], d
|
|
call Music8_GetNextMusicByte
|
|
ld d, a
|
|
ld b, $2
|
|
call Func_21ff7
|
|
ld [hl], d
|
|
call Music8_GetNextMusicByte
|
|
ld e, a
|
|
ld a, c
|
|
cp CH7
|
|
ld a, $0
|
|
jr z, .sfxNoiseChannel ; only two params for noise channel
|
|
push de
|
|
call Music8_GetNextMusicByte
|
|
pop de
|
|
.sfxNoiseChannel
|
|
ld d, a
|
|
push de
|
|
call Func_21daa
|
|
call Func_21d79
|
|
pop de
|
|
call Func_21dcc
|
|
ret
|
|
|
|
Music8_unknownsfx0x10: ; 21c40 (8:5c40)
|
|
ld a, c
|
|
cp CH4
|
|
jr c, Music8_note ; if not a sfx
|
|
ld a, d
|
|
cp $10 ; is this command a unknownsfx0x10?
|
|
jr nz, Music8_note ; no
|
|
ld b, $0
|
|
ld hl, $c036
|
|
add hl, bc
|
|
bit 0, [hl]
|
|
jr nz, Music8_note ; no
|
|
call Music8_GetNextMusicByte ; yes
|
|
ld [$FF00+$10], a
|
|
jp Music8_endchannel
|
|
|
|
Music8_note: ; 21c5c (8:5c5c)
|
|
ld a, c
|
|
cp CH3
|
|
jr nz, Music8_notelength ; if not noise channel
|
|
ld a, d
|
|
and $f0
|
|
cp $b0 ; is this command a dnote?
|
|
jr z, Music8_dnote ; yes
|
|
jr nc, Music8_notelength ; no
|
|
swap a
|
|
ld b, a
|
|
ld a, d
|
|
and $f
|
|
ld d, a
|
|
ld a, b
|
|
push de
|
|
push bc
|
|
jr asm_21c7e
|
|
|
|
Music8_dnote: ; 21c76 (8:5c76)
|
|
ld a, d
|
|
and $f
|
|
push af
|
|
push bc
|
|
call Music8_GetNextMusicByte ; get dnote instrument
|
|
asm_21c7e
|
|
ld d, a
|
|
ld a, [$c003]
|
|
and a
|
|
jr nz, .asm_21c89
|
|
ld a, d
|
|
call Func_22035
|
|
.asm_21c89
|
|
pop bc
|
|
pop de
|
|
|
|
Music8_notelength: ; 21c8b (8:5c8b)
|
|
ld a, d
|
|
push af
|
|
and $f
|
|
inc a
|
|
ld b, $0
|
|
ld e, a ; store note length (in 16ths)
|
|
ld d, b
|
|
ld hl, $c0c6
|
|
add hl, bc
|
|
ld a, [hl]
|
|
ld l, b
|
|
call Func_22006
|
|
ld a, c
|
|
cp CH4
|
|
jr nc, .sfxChannel
|
|
ld a, [$c0e8]
|
|
ld d, a
|
|
ld a, [$c0e9]
|
|
ld e, a
|
|
jr .skip
|
|
.sfxChannel
|
|
ld d, $1
|
|
ld e, $0
|
|
cp CH7
|
|
jr z, .skip ; if noise channel
|
|
call Func_21e2f
|
|
ld a, [$c0ea]
|
|
ld d, a
|
|
ld a, [$c0eb]
|
|
ld e, a
|
|
.skip
|
|
ld a, l
|
|
ld b, $0
|
|
ld hl, $c0ce
|
|
add hl, bc
|
|
ld l, [hl]
|
|
call Func_22006
|
|
ld e, l
|
|
ld d, h
|
|
ld hl, $c0ce
|
|
add hl, bc
|
|
ld [hl], e
|
|
ld a, d
|
|
ld hl, $c0b6
|
|
add hl, bc
|
|
ld [hl], a
|
|
ld hl, $c036
|
|
add hl, bc
|
|
bit 0, [hl]
|
|
jr nz, Music8_notepitch
|
|
ld hl, $c02e
|
|
add hl, bc
|
|
bit 2, [hl]
|
|
jr z, Music8_notepitch
|
|
pop hl
|
|
ret
|
|
|
|
Music8_notepitch: ; 21ce9 (8:5ce9)
|
|
pop af
|
|
and $f0
|
|
cp $c0 ; compare to rest
|
|
jr nz, .notRest
|
|
ld a, c
|
|
cp CH4
|
|
jr nc, .sfxChannel
|
|
ld hl, $c02a
|
|
add hl, bc
|
|
ld a, [hl]
|
|
and a
|
|
jr nz, .done
|
|
; fall through
|
|
.sfxChannel
|
|
ld a, c
|
|
cp CH2
|
|
jr z, .musicChannel3
|
|
cp CH6
|
|
jr nz, .notSfxChannel3
|
|
.musicChannel3
|
|
ld b, $0
|
|
ld hl, Unknown_222de
|
|
add hl, bc
|
|
ld a, [$FF00+$25]
|
|
and [hl]
|
|
ld [$FF00+$25], a
|
|
jr .done
|
|
.notSfxChannel3
|
|
ld b, $2
|
|
call Func_21ff7
|
|
ld a, $8
|
|
ld [hli], a
|
|
inc hl
|
|
ld a, $80
|
|
ld [hl], a
|
|
.done
|
|
ret
|
|
.notRest
|
|
swap a
|
|
ld b, $0
|
|
ld hl, $c0d6
|
|
add hl, bc
|
|
ld b, [hl]
|
|
call Func_22017
|
|
ld b, $0
|
|
ld hl, $c02e
|
|
add hl, bc
|
|
bit 4, [hl]
|
|
jr z, .asm_21d39
|
|
call Func_21f4e
|
|
.asm_21d39
|
|
push de
|
|
ld a, c
|
|
cp CH4
|
|
jr nc, .skip ; if sfx channel
|
|
ld hl, $c02a
|
|
ld d, $0
|
|
ld e, a
|
|
add hl, de
|
|
ld a, [hl]
|
|
and a
|
|
jr nz, .asm_21d4c
|
|
jr .skip
|
|
.asm_21d4c
|
|
pop de
|
|
ret
|
|
.skip
|
|
ld b, $0
|
|
ld hl, $c0de
|
|
add hl, bc
|
|
ld d, [hl]
|
|
ld b, $2
|
|
call Func_21ff7
|
|
ld [hl], d
|
|
call Func_21daa
|
|
call Func_21d79
|
|
pop de
|
|
ld b, $0
|
|
ld hl, $c02e
|
|
add hl, bc
|
|
bit 0, [hl]
|
|
jr z, .asm_21d70
|
|
inc e
|
|
jr nc, .asm_21d70
|
|
inc d
|
|
.asm_21d70
|
|
ld hl, $c066
|
|
add hl, bc
|
|
ld [hl], e
|
|
call Func_21dcc
|
|
ret
|
|
|
|
Func_21d79: ; 21d79 (8:5d79)
|
|
ld b, $0
|
|
ld hl, Unknown_222e6
|
|
add hl, bc
|
|
ld a, [$FF00+$25]
|
|
or [hl]
|
|
ld d, a
|
|
ld a, c
|
|
cp CH7
|
|
jr z, .sfxNoiseChannel
|
|
cp CH4
|
|
jr nc, .skip ; if sfx channel
|
|
ld hl, $c02a
|
|
add hl, bc
|
|
ld a, [hl]
|
|
and a
|
|
jr nz, .skip
|
|
.sfxNoiseChannel
|
|
ld a, [$c004]
|
|
ld hl, Unknown_222e6
|
|
add hl, bc
|
|
and [hl]
|
|
ld d, a
|
|
ld a, [$FF00+$25]
|
|
ld hl, Unknown_222de
|
|
add hl, bc
|
|
and [hl]
|
|
or d
|
|
ld d, a
|
|
.skip
|
|
ld a, d
|
|
ld [$FF00+$25], a
|
|
ret
|
|
|
|
Func_21daa: ; 21daa (8:5daa)
|
|
ld b, $0
|
|
ld hl, $c0b6
|
|
add hl, bc
|
|
ld d, [hl]
|
|
ld a, c
|
|
cp CH2
|
|
jr z, .channel3 ; if music channel 3
|
|
cp CH6
|
|
jr z, .channel3 ; if sfx channel 3
|
|
ld a, d
|
|
and $3f
|
|
ld d, a
|
|
ld hl, $c03e
|
|
add hl, bc
|
|
ld a, [hl]
|
|
or d
|
|
ld d, a
|
|
.channel3
|
|
ld b, $1
|
|
call Func_21ff7
|
|
ld [hl], d
|
|
ret
|
|
|
|
Func_21dcc: ; 21dcc (8:5dcc)
|
|
ld a, c
|
|
cp CH2
|
|
jr z, .channel3
|
|
cp CH6
|
|
jr nz, .notSfxChannel3
|
|
; fall through
|
|
.channel3
|
|
push de
|
|
ld de, $c0e6
|
|
cp CH2
|
|
jr z, .musicChannel3
|
|
ld de, $c0e7
|
|
.musicChannel3
|
|
ld a, [de]
|
|
add a
|
|
ld d, $0
|
|
ld e, a
|
|
ld hl, Music8_Channel3DutyPointers
|
|
add hl, de
|
|
ld e, [hl]
|
|
inc hl
|
|
ld d, [hl]
|
|
ld hl, $ff30
|
|
ld b, $f
|
|
ld a, $0
|
|
ld [$FF00+$1a], a
|
|
.loop
|
|
ld a, [de]
|
|
inc de
|
|
ld [hli], a
|
|
ld a, b
|
|
dec b
|
|
and a
|
|
jr nz, .loop
|
|
ld a, $80
|
|
ld [$FF00+$1a], a
|
|
pop de
|
|
.notSfxChannel3
|
|
ld a, d
|
|
or $80
|
|
and $c7
|
|
ld d, a
|
|
ld b, $3
|
|
call Func_21ff7
|
|
ld [hl], e
|
|
inc hl
|
|
ld [hl], d
|
|
ld a, c
|
|
cp CH4
|
|
jr c, .musicChannel
|
|
call Func_21e56
|
|
.musicChannel
|
|
ret
|
|
|
|
Func_21e19: ; 21e19 (8:5e19)
|
|
ld a, c
|
|
cp CH4
|
|
jr nz, .asm_21e2e
|
|
ld a, [$d083]
|
|
bit 7, a
|
|
jr z, .asm_21e2e
|
|
xor a
|
|
ld [$c0f1], a
|
|
ld a, $80
|
|
ld [$c0f2], a
|
|
.asm_21e2e
|
|
ret
|
|
|
|
Func_21e2f: ; 21e2f (8:5e2f)
|
|
call Func_21e8b
|
|
jr c, .asm_21e39
|
|
call Func_21e9f
|
|
jr nc, .asm_21e4c
|
|
.asm_21e39
|
|
ld d, $0
|
|
ld a, [$c0f2]
|
|
add $80
|
|
jr nc, .asm_21e43
|
|
inc d
|
|
.asm_21e43
|
|
ld [$c0eb], a
|
|
ld a, d
|
|
ld [$c0ea], a
|
|
jr .asm_21e55
|
|
.asm_21e4c
|
|
xor a
|
|
ld [$c0eb], a
|
|
ld a, $1
|
|
ld [$c0ea], a
|
|
.asm_21e55
|
|
ret
|
|
|
|
Func_21e56: ; 21e56 (8:5e56)
|
|
call Func_21e8b
|
|
jr c, .asm_21e60
|
|
call Func_21e9f
|
|
jr nc, .asm_21e6c
|
|
.asm_21e60
|
|
ld a, [$c0f1]
|
|
add e
|
|
jr nc, .asm_21e67
|
|
inc d
|
|
.asm_21e67
|
|
dec hl
|
|
ld e, a
|
|
ld [hl], e
|
|
inc hl
|
|
ld [hl], d
|
|
.asm_21e6c
|
|
ret
|
|
|
|
Func_21e6d: ; 21e6d (8:5e6d)
|
|
call Func_21e8b
|
|
jr nc, .asm_21e88
|
|
ld hl, $c006
|
|
ld e, c
|
|
ld d, $0
|
|
sla e
|
|
rl d
|
|
add hl, de
|
|
ld a, [hl]
|
|
sub $1
|
|
ld [hl], a
|
|
inc hl
|
|
ld a, [hl]
|
|
sbc $0
|
|
ld [hl], a
|
|
scf
|
|
ret
|
|
.asm_21e88
|
|
scf
|
|
ccf
|
|
ret
|
|
|
|
Func_21e8b: ; 21e8b (8:5e8b)
|
|
ld a, [$c02a]
|
|
cp $14
|
|
jr nc, .asm_21e94
|
|
jr .asm_21e9a
|
|
.asm_21e94
|
|
cp $86
|
|
jr z, .asm_21e9a
|
|
jr c, .asm_21e9d
|
|
.asm_21e9a
|
|
scf
|
|
ccf
|
|
ret
|
|
.asm_21e9d
|
|
scf
|
|
ret
|
|
|
|
Func_21e9f: ; 21e9f (8:5e9f)
|
|
ld a, [$c02d]
|
|
ld b, a
|
|
ld a, [$c02a]
|
|
or b
|
|
cp $9d
|
|
jr nc, .asm_21ead
|
|
jr .asm_21eb3
|
|
.asm_21ead
|
|
cp $ea
|
|
jr z, .asm_21eb3
|
|
jr c, .asm_21eb6
|
|
.asm_21eb3
|
|
scf
|
|
ccf
|
|
ret
|
|
.asm_21eb6
|
|
scf
|
|
ret
|
|
|
|
Music8_ApplyPitchBend: ; 21eb8 (8:5eb8)
|
|
ld hl, $c02e
|
|
add hl, bc
|
|
bit 5, [hl]
|
|
jp nz, .asm_21eff
|
|
ld hl, $c09e
|
|
add hl, bc
|
|
ld e, [hl]
|
|
ld hl, $c096
|
|
add hl, bc
|
|
ld d, [hl]
|
|
ld hl, $c07e
|
|
add hl, bc
|
|
ld l, [hl]
|
|
ld h, b
|
|
add hl, de
|
|
ld d, h
|
|
ld e, l
|
|
ld hl, $c08e
|
|
add hl, bc
|
|
push hl
|
|
ld hl, $c086
|
|
add hl, bc
|
|
ld a, [hl]
|
|
pop hl
|
|
add [hl]
|
|
ld [hl], a
|
|
ld a, $0
|
|
adc e
|
|
ld e, a
|
|
ld a, $0
|
|
adc d
|
|
ld d, a
|
|
ld hl, $c0a6
|
|
add hl, bc
|
|
ld a, [hl]
|
|
cp d
|
|
jp c, .asm_21f45
|
|
jr nz, .asm_21f32
|
|
ld hl, $c0ae
|
|
add hl, bc
|
|
ld a, [hl]
|
|
cp e
|
|
jp c, .asm_21f45
|
|
jr .asm_21f32
|
|
.asm_21eff
|
|
ld hl, $c09e
|
|
add hl, bc
|
|
ld a, [hl]
|
|
ld hl, $c096
|
|
add hl, bc
|
|
ld d, [hl]
|
|
ld hl, $c07e
|
|
add hl, bc
|
|
ld e, [hl]
|
|
sub e
|
|
ld e, a
|
|
ld a, d
|
|
sbc b
|
|
ld d, a
|
|
ld hl, $c086
|
|
add hl, bc
|
|
ld a, [hl]
|
|
add a
|
|
ld [hl], a
|
|
ld a, e
|
|
sbc b
|
|
ld e, a
|
|
ld a, d
|
|
sbc b
|
|
ld d, a
|
|
ld hl, $c0a6
|
|
add hl, bc
|
|
ld a, d
|
|
cp [hl]
|
|
jr c, .asm_21f45
|
|
jr nz, .asm_21f32
|
|
ld hl, $c0ae
|
|
add hl, bc
|
|
ld a, e
|
|
cp [hl]
|
|
jr c, .asm_21f45
|
|
.asm_21f32
|
|
ld hl, $c09e
|
|
add hl, bc
|
|
ld [hl], e
|
|
ld hl, $c096
|
|
add hl, bc
|
|
ld [hl], d
|
|
ld b, $3
|
|
call Func_21ff7
|
|
ld a, e
|
|
ld [hli], a
|
|
ld [hl], d
|
|
ret
|
|
.asm_21f45
|
|
ld hl, $c02e
|
|
add hl, bc
|
|
res 4, [hl]
|
|
res 5, [hl]
|
|
ret
|
|
|
|
Func_21f4e: ; 21f4e (8:5f4e)
|
|
ld hl, $c096
|
|
add hl, bc
|
|
ld [hl], d
|
|
ld hl, $c09e
|
|
add hl, bc
|
|
ld [hl], e
|
|
ld hl, $c0b6
|
|
add hl, bc
|
|
ld a, [hl]
|
|
ld hl, $c076
|
|
add hl, bc
|
|
sub [hl]
|
|
jr nc, .asm_21f66
|
|
ld a, $1
|
|
.asm_21f66
|
|
ld [hl], a
|
|
ld hl, $c0ae
|
|
add hl, bc
|
|
ld a, e
|
|
sub [hl]
|
|
ld e, a
|
|
ld a, d
|
|
sbc b
|
|
ld hl, $c0a6
|
|
add hl, bc
|
|
sub [hl]
|
|
jr c, .asm_21f82
|
|
ld d, a
|
|
ld b, $0
|
|
ld hl, $c02e
|
|
add hl, bc
|
|
set 5, [hl]
|
|
jr .asm_21fa5
|
|
.asm_21f82
|
|
ld hl, $c096
|
|
add hl, bc
|
|
ld d, [hl]
|
|
ld hl, $c09e
|
|
add hl, bc
|
|
ld e, [hl]
|
|
ld hl, $c0ae
|
|
add hl, bc
|
|
ld a, [hl]
|
|
sub e
|
|
ld e, a
|
|
ld a, d
|
|
sbc b
|
|
ld d, a
|
|
ld hl, $c0a6
|
|
add hl, bc
|
|
ld a, [hl]
|
|
sub d
|
|
ld d, a
|
|
ld b, $0
|
|
ld hl, $c02e
|
|
add hl, bc
|
|
res 5, [hl]
|
|
.asm_21fa5
|
|
ld hl, $c076
|
|
add hl, bc
|
|
.asm_21fa9
|
|
inc b
|
|
ld a, e
|
|
sub [hl]
|
|
ld e, a
|
|
jr nc, .asm_21fa9
|
|
ld a, d
|
|
and a
|
|
jr z, .asm_21fb7
|
|
dec a
|
|
ld d, a
|
|
jr .asm_21fa9
|
|
.asm_21fb7
|
|
ld a, e
|
|
add [hl]
|
|
ld d, b
|
|
ld b, $0
|
|
ld hl, $c07e
|
|
add hl, bc
|
|
ld [hl], d
|
|
ld hl, $c086
|
|
add hl, bc
|
|
ld [hl], a
|
|
ld hl, $c08e
|
|
add hl, bc
|
|
ld [hl], a
|
|
ret
|
|
|
|
Music8_ApplyDutyCycle: ; 21fcc (8:5fcc)
|
|
ld b, $0
|
|
ld hl, $c046
|
|
add hl, bc
|
|
ld a, [hl]
|
|
rlca
|
|
rlca
|
|
ld [hl], a
|
|
and $c0
|
|
ld d, a
|
|
ld b, $1
|
|
call Func_21ff7
|
|
ld a, [hl]
|
|
and $3f
|
|
or d
|
|
ld [hl], a
|
|
ret
|
|
|
|
Music8_GetNextMusicByte: ; 21fe4 (8:5fe4)
|
|
ld d, $0
|
|
ld a, c
|
|
add a
|
|
ld e, a
|
|
ld hl, $c006
|
|
add hl, de
|
|
ld a, [hli]
|
|
ld e, a
|
|
ld a, [hld]
|
|
ld d, a
|
|
ld a, [de] ; get next music command
|
|
inc de
|
|
ld [hl], e ; store address of next command
|
|
inc hl
|
|
ld [hl], d
|
|
ret
|
|
|
|
Func_21ff7: ; 21ff7 (8:5ff7)
|
|
ld a, c
|
|
ld hl, Unknown_222d6
|
|
add l
|
|
jr nc, .noCarry
|
|
inc h
|
|
.noCarry
|
|
ld l, a
|
|
ld a, [hl]
|
|
add b
|
|
ld l, a
|
|
ld h, $ff
|
|
ret
|
|
|
|
Func_22006: ; 22006 (8:6006)
|
|
ld h, $0
|
|
.loop
|
|
srl a
|
|
jr nc, .noCarry
|
|
add hl, de
|
|
.noCarry
|
|
sla e
|
|
rl d
|
|
and a
|
|
jr z, .done
|
|
jr .loop
|
|
.done
|
|
ret
|
|
|
|
Func_22017: ; 22017 (8:6017)
|
|
ld h, $0
|
|
ld l, a
|
|
add hl, hl
|
|
ld d, h
|
|
ld e, l
|
|
ld hl, Unknown_222ee
|
|
add hl, de
|
|
ld e, [hl]
|
|
inc hl
|
|
ld d, [hl]
|
|
ld a, b
|
|
.loop
|
|
cp CH7
|
|
jr z, .done
|
|
sra d
|
|
rr e
|
|
inc a
|
|
jr .loop
|
|
.done
|
|
ld a, $8
|
|
add d
|
|
ld d, a
|
|
ret
|
|
|
|
Func_22035:: ; 22035 (8:6035)
|
|
ld [$c001], a
|
|
cp $ff
|
|
jp z, Func_221f3
|
|
cp $e9
|
|
jp z, Func_2210d
|
|
jp c, Func_2210d
|
|
cp $fe
|
|
jr z, .asm_2204c
|
|
jp nc, Func_2210d
|
|
.asm_2204c
|
|
xor a
|
|
ld [$c000], a
|
|
ld [$c003], a
|
|
ld [$c0e9], a
|
|
ld [$c0e6], a
|
|
ld [$c0e7], a
|
|
ld d, $8
|
|
ld hl, $c016
|
|
call FillMusicRAM8
|
|
ld hl, $c006
|
|
call FillMusicRAM8
|
|
ld d, $4
|
|
ld hl, $c026
|
|
call FillMusicRAM8
|
|
ld hl, $c02e
|
|
call FillMusicRAM8
|
|
ld hl, $c03e
|
|
call FillMusicRAM8
|
|
ld hl, $c046
|
|
call FillMusicRAM8
|
|
ld hl, $c04e
|
|
call FillMusicRAM8
|
|
ld hl, $c056
|
|
call FillMusicRAM8
|
|
ld hl, $c05e
|
|
call FillMusicRAM8
|
|
ld hl, $c066
|
|
call FillMusicRAM8
|
|
ld hl, $c06e
|
|
call FillMusicRAM8
|
|
ld hl, $c036
|
|
call FillMusicRAM8
|
|
ld hl, $c076
|
|
call FillMusicRAM8
|
|
ld hl, $c07e
|
|
call FillMusicRAM8
|
|
ld hl, $c086
|
|
call FillMusicRAM8
|
|
ld hl, $c08e
|
|
call FillMusicRAM8
|
|
ld hl, $c096
|
|
call FillMusicRAM8
|
|
ld hl, $c09e
|
|
call FillMusicRAM8
|
|
ld hl, $c0a6
|
|
call FillMusicRAM8
|
|
ld hl, $c0ae
|
|
call FillMusicRAM8
|
|
ld a, $1
|
|
ld hl, $c0be
|
|
call FillMusicRAM8
|
|
ld hl, $c0b6
|
|
call FillMusicRAM8
|
|
ld hl, $c0c6
|
|
call FillMusicRAM8
|
|
ld [$c0e8], a
|
|
ld a, $ff
|
|
ld [$c004], a
|
|
xor a
|
|
ld [$FF00+$24], a
|
|
ld a, $8
|
|
ld [$FF00+$10], a
|
|
ld a, $0
|
|
ld [$FF00+$25], a
|
|
xor a
|
|
ld [$FF00+$1a], a
|
|
ld a, $80
|
|
ld [$FF00+$1a], a
|
|
ld a, $77
|
|
ld [$FF00+$24], a
|
|
jp Func_2224e
|
|
|
|
Func_2210d: ; 2210d (8:610d)
|
|
ld l, a
|
|
ld e, a
|
|
ld h, $0
|
|
ld d, h
|
|
add hl, hl
|
|
add hl, de
|
|
ld de, SFX_Headers_08
|
|
add hl, de
|
|
ld a, h
|
|
ld [$c0ec], a
|
|
ld a, l
|
|
ld [$c0ed], a
|
|
ld a, [hl]
|
|
and $c0
|
|
rlca
|
|
rlca
|
|
ld c, a
|
|
.asm_22126
|
|
ld d, c
|
|
ld a, c
|
|
add a
|
|
add c
|
|
ld c, a
|
|
ld b, $0
|
|
ld a, [$c0ec]
|
|
ld h, a
|
|
ld a, [$c0ed]
|
|
ld l, a
|
|
add hl, bc
|
|
ld c, d
|
|
ld a, [hl]
|
|
and $f
|
|
ld e, a
|
|
ld d, $0
|
|
ld hl, $c026
|
|
add hl, de
|
|
ld a, [hl]
|
|
and a
|
|
jr z, .asm_22162
|
|
ld a, e
|
|
cp $7
|
|
jr nz, .asm_22159
|
|
ld a, [$c001]
|
|
cp $14
|
|
jr nc, .asm_22152
|
|
ret
|
|
.asm_22152
|
|
ld a, [hl]
|
|
cp $14
|
|
jr z, .asm_22162
|
|
jr c, .asm_22162
|
|
.asm_22159
|
|
ld a, [$c001]
|
|
cp [hl]
|
|
jr z, .asm_22162
|
|
jr c, .asm_22162
|
|
ret
|
|
.asm_22162
|
|
xor a
|
|
push de
|
|
ld h, d
|
|
ld l, e
|
|
add hl, hl
|
|
ld d, h
|
|
ld e, l
|
|
ld hl, $c016
|
|
add hl, de
|
|
ld [hli], a
|
|
ld [hl], a
|
|
ld hl, $c006
|
|
add hl, de
|
|
ld [hli], a
|
|
ld [hl], a
|
|
pop de
|
|
ld hl, $c026
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c02e
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c03e
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c046
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c04e
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c056
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c05e
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c066
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c06e
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c076
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c07e
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c086
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c08e
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c096
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c09e
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c0a6
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c0ae
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c036
|
|
add hl, de
|
|
ld [hl], a
|
|
ld a, $1
|
|
ld hl, $c0be
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c0b6
|
|
add hl, de
|
|
ld [hl], a
|
|
ld hl, $c0c6
|
|
add hl, de
|
|
ld [hl], a
|
|
ld a, e
|
|
cp $4
|
|
jr nz, .asm_221ea
|
|
ld a, $8
|
|
ld [$FF00+$10], a
|
|
.asm_221ea
|
|
ld a, c
|
|
and a
|
|
jp z, Func_2224e
|
|
dec c
|
|
jp .asm_22126
|
|
|
|
Func_221f3: ; 221f3 (8:61f3)
|
|
ld a, $80
|
|
ld [$FF00+$26], a
|
|
ld [$FF00+$1a], a
|
|
xor a
|
|
ld [$FF00+$25], a
|
|
ld [$FF00+$1c], a
|
|
ld a, $8
|
|
ld [$FF00+$10], a
|
|
ld [$FF00+$12], a
|
|
ld [$FF00+$17], a
|
|
ld [$FF00+$21], a
|
|
ld a, $40
|
|
ld [$FF00+$14], a
|
|
ld [$FF00+$19], a
|
|
ld [$FF00+$23], a
|
|
ld a, $77
|
|
ld [$FF00+$24], a
|
|
xor a
|
|
ld [$c000], a
|
|
ld [$c003], a
|
|
ld [$c002], a
|
|
ld [$c0e9], a
|
|
ld [$c0eb], a
|
|
ld [$c0e6], a
|
|
ld [$c0e7], a
|
|
ld d, $a0
|
|
ld hl, $c006
|
|
call FillMusicRAM8
|
|
ld a, $1
|
|
ld d, $18
|
|
ld hl, $c0b6
|
|
call FillMusicRAM8
|
|
ld [$c0e8], a
|
|
ld [$c0ea], a
|
|
ld a, $ff
|
|
ld [$c004], a
|
|
ret
|
|
|
|
; fills d bytes at hl with a
|
|
FillMusicRAM8: ; 22248 (8:6248)
|
|
ld b, d
|
|
.loop
|
|
ld [hli], a
|
|
dec b
|
|
jr nz, .loop
|
|
ret
|
|
|
|
Func_2224e: ; 2224e (8:624e)
|
|
ld a, [$c001]
|
|
ld l, a
|
|
ld e, a
|
|
ld h, $0
|
|
ld d, h
|
|
add hl, hl
|
|
add hl, de
|
|
ld de, SFX_Headers_08
|
|
add hl, de
|
|
ld e, l
|
|
ld d, h
|
|
ld hl, $c006
|
|
ld a, [de] ; get channel number
|
|
ld b, a
|
|
rlca
|
|
rlca
|
|
and $3
|
|
ld c, a
|
|
ld a, b
|
|
and $f
|
|
ld b, c
|
|
inc b
|
|
inc de
|
|
ld c, $0
|
|
.asm_22270
|
|
cp c
|
|
jr z, .asm_22278
|
|
inc c
|
|
inc hl
|
|
inc hl
|
|
jr .asm_22270
|
|
.asm_22278
|
|
push hl
|
|
push bc
|
|
push af
|
|
ld b, $0
|
|
ld c, a
|
|
ld hl, $c026
|
|
add hl, bc
|
|
ld a, [$c001]
|
|
ld [hl], a
|
|
pop af
|
|
cp $3
|
|
jr c, .asm_22291
|
|
ld hl, $c02e
|
|
add hl, bc
|
|
set 2, [hl]
|
|
.asm_22291
|
|
pop bc
|
|
pop hl
|
|
ld a, [de] ; get channel pointer
|
|
ld [hli], a
|
|
inc de
|
|
ld a, [de]
|
|
ld [hli], a
|
|
inc de
|
|
inc c
|
|
dec b
|
|
ld a, b
|
|
and a
|
|
ld a, [de]
|
|
inc de
|
|
jr nz, .asm_22270
|
|
ld a, [$c001]
|
|
cp $14
|
|
jr nc, .asm_222aa
|
|
jr .asm_222d4
|
|
.asm_222aa
|
|
ld a, [$c001]
|
|
cp $86
|
|
jr z, .asm_222d4
|
|
jr c, .asm_222b5
|
|
jr .asm_222d4
|
|
.asm_222b5
|
|
ld hl, $c02a
|
|
ld [hli], a
|
|
ld [hli], a
|
|
ld [hli], a
|
|
ld [hl], a
|
|
ld hl, $c012 ; sfx noise channel pointer
|
|
ld de, Noise8_endchannel
|
|
ld [hl], e
|
|
inc hl
|
|
ld [hl], d ; overwrite pointer to point to endchannel
|
|
ld a, [$c005]
|
|
and a
|
|
jr nz, .asm_222d4
|
|
ld a, [$FF00+$24]
|
|
ld [$c005], a
|
|
ld a, $77
|
|
ld [$FF00+$24], a
|
|
.asm_222d4
|
|
ret
|
|
|
|
Noise8_endchannel: ; 222d5 (8:62d5)
|
|
endchannel
|
|
|
|
Unknown_222d6: ; 222d6 (8:62d6)
|
|
db $10, $15, $1A, $1F ; channels 0-3
|
|
db $10, $15, $1A, $1F ; channels 4-7
|
|
|
|
Unknown_222de: ; 222de (8:62de)
|
|
db $EE, $DD, $BB, $77 ; channels 0-3
|
|
db $EE, $DD, $BB, $77 ; channels 4-7
|
|
|
|
Unknown_222e6: ; 222e6 (8:62e6)
|
|
db $11, $22, $44, $88 ; channels 0-3
|
|
db $11, $22, $44, $88 ; channels 4-7
|
|
|
|
Unknown_222ee: ; 222ee (8:62ee)
|
|
dw $F82C
|
|
dw $F89D
|
|
dw $F907
|
|
dw $F96B
|
|
dw $F9CA
|
|
dw $FA23
|
|
dw $FA77
|
|
dw $FAC7
|
|
dw $FB12
|
|
dw $FB58
|
|
dw $FB9B
|
|
dw $FBDA
|
|
|
|
|